Submarine boat



June 1 2, 1923.

SUBMARINE BOAT Filed Sept. l. 1921 3 Sheets-Sheet 1 l 1,458,844 F. S.PERKINS June 12, 1923. 4 1,458,844k

F. S. PERKINS SUBMARINE BOAT Filed Sept. l. 1921 3 ySilleegs-Sheei'. 2

- @MMM/0% 44k MM%MW June 12, 1923. i 1,458,844

. F. s, PERKINS SUBMARINE BOAT Filed Sept. l. 1921 3 Sheets-Sheet 5 ying"l//f 01mg www c by declare that the following Patented J une 12,` 1923.

U vE `FEEDER-IGKl STANLEY PERKINS, or MILWAUKEE, 'wisorfiftis'iivr.,A v

' SUBMAEINE BOAT.

yApplication led' Septembery 1, 1921.. ySerial'lNol 497,724. i

To all -wlwm t may concern.'

Be it knownthat I, FREDERICK STANLEY PERKINS, a citizen ofthe UnitedStates, and resident of Milwaukee, 4in the county of Milwaukee and Stateof Wisconsin, have invented certain new and useful Improvements inSubmarine Boats; and I do hereand exact description thereof.

My inventionvrelates to certain new and useful improvements in submarineboats and lis designed for use in connection with boats of this typewhich are built for war, sporter commercial purposes. 1 f 2 Thegeneral-object of the invention is to construct a boat of. this kindwhich may be maneuvered more quickly and easily than those heretoforeconstructed.

provide means by which thebo-at may bev turned around in the smallestpossible space and -without danger of listing.

The various features of my invention will be .more fully understood byreference tothe accompanying drawings, in which,

Figure 1 is a klongitudinal sectional view A through a boat equipped,according to my invention, corresponding to a section on the line 1-1 ofFigure 3. l

Figure 2 is a side elevation of the same. Figure 3 is a sectional planview of the same, corresponding to al section on the line 3 8 of Figure2. y

Figure 4 is a longitudinal sectional view through the bow of the boatand vshowing a modified form of the invention.

Figure 5 is a sectional plan view through the stern or tail of the boat.

Figure 6 is a transverse sectional view of the form shown in Figure 4and taken on the line {SL-6 thereof, and

Figure 7 is a fragmentary sectional plan view of the bow.

Referring specifically to the drawings, the boat comprises a shell orhull which is substantially in the shape of a sh. Inside this shell, amotor 2 is supported in the bow on a platform which has an extension 5is a full, clear,l

- a uniform depth.v lhen, however,

extending through the nose thereof, and

forming a water tight connection about which the platformv may beoscillated up and down. A propeller shaft connected with the motorisfjournalled in the extension 5 and carries `a propeller 6 on` itsforwardend platform has, at its rear n telescopic connection withasleevewhich is in threaded connection with a vertical shaft vin frontvof the nose ofthe .shellv 1. 'The if and, a Sndingw I 3 which may berotated by means of the hand wheel 24,'which is connected thereto*-r byworm gearing.- Thus the. rear end of the platform may be raised orlowered by turning the hand wheelv 24, whereuponthe'- motor 2 and thepropeller shaft willbeoscillated about their pivotal connection Ywiththe angle of the submerge or to elevate the boat. if d rlhe boat isalsoprovided with pairs of fins 7, which .are mounted onthe respectiveshafts 16 which extend through the bow and stern respectively. The outerends ofjthe thernose of thev boat, `'andthere'by 'changeV propeller. sothat the, power kexerted thereby will be exerted in adownwardlyforupwardly inclined`r direction to shaft 16 are `guided and supported byvthe 'i brackets 10, which are securedto thefsides ofthe boat. The fins7 are noriiiallydis-` posed in horizontal planes-I so `as to guide theboat and maintain `it in equilibrium atk the angle downwardly of thepropeller shiaftis tilted or upwardly to submerge' :or planes of thefins 7 are simultaneously in,-` clined to facilitate this maneuver. Inyorder: thatthis change in `the inclination-,of the fins. may be ei'ected`siiiiultaneously with the tilting-ofy the platform, each of the shaftsf16is provided withV an arm 17. Thearm on the forwardy shaftlisconnected' a link' 23 lwith the platform 41. The platformisconnectedby a second link with a bell cranky 20. I This bell crank isconnected by a rod 19 with a second bell crank which is also connectedby a link 23 to the arm 17 on the rear'shaft 16. Thus emerge, l the orwith'the sleeve both pairs of fins areadjusted at the same I time and inthe saine direction as the pron peller shaft.

The lower part of the hullv is provided with a plurality'of compartments8 for holdf The tail of the boat is formed, as shown, of a number ofsections ll, 12, 13, lll and l5, which are nested together and pivotallyconnected, as shown in Figure 5. By means of this structure, the tailmay be iiexed, as shown in dotted lines in Figure 3, Thus the tail notonly takes the place of the usual rudder, but forms a substantiallyuniformly curved stern by means of which the boat may be turned aroundin the shortest possible space. Means for controlling the position ofthe tail such as eyes 22, or the like, are secured to the rear sectionl5 and connected by cables 2l which extend through the sides of thestern at 25 and are carried over suitable sheaves to the pilots cabinwhere they are connected to a windlass 4L for operating the same.

In the modification illustrated in Figures 4 and 6, the motor 2 iscarried on. a stationary platform and a housing 30 is secured in theprow and is provided with a suitable bearing 32 in which the shaft 36 ofthe motor is journaled. The housing 30 is provided with a spherical headwithin which is a universal joint 85 which connects the shaft 36 withthe propeller shaft on the front end of which is carried a propeller '6.The forward end of the housing is provided with a suitable cap 26 inwhich the propeller shaft is carried and this cap is slidable up anddown, a slot being provided in the end of the housingto permit thepropeller shaft to move up and down.

The means for moving the cap 26 on the spherical head comprise-s a pairof eye bolts 27, or the like, secured to the upper and lower extremitiesof the cap and connected by links 28 t0 the rods 29 which are slidablymounted iu the sides of the bow and provided with suitable water tightpacking. The rear ends of the rods 29 may be suitably connected with theforward shaft 16 so as to operate simultaneously therewith, as will beunderstood.

The cap 26 is also provided with lateral arms 33 which are movable bymeans of the links 28 and reciprocable rods 29 which may be moved bymeans of the crosshead 38 to swing the propeller to either side to turnthe boatto the right or left. The crosshead is connected by the cables39 and ll-O to the windlass 4 so as to operate l. ln a submarine boat, ahull substantially in the shape of a fish and having a flexible tailportion, a rotary propeller car ried in front of the hull, means forinclining' the axis of the propeller yto direct the course upwardly ordownwardly, andmeans for flexing the tail portion of the hull'to changethe course toward the right or left.

2. A. submarine boat having a hull substantially in the shape of a fishand havingr a flexible tail portion, a shaft extending through theforward end of the hull and having' a propeller on its'forward end,vfinsv supported on the sides of the hull, means for tilting said shaftand propeller to direct the propelling force downwardly or Aup,-

wardly, means for simultaneously tiltingy the fins in the same directionand means for flexing the tail portion of the hull to change the coursetoward the right orleft,

3. A submarine boat comprising a hull formed substantially in theshapeof al fish throughout its entire extent, the rear portion of the hullbeing articulated, means for flexing the rear portion of the hull tothereby steer the boat, a power driven propeller mounted in the front ofthe boat, a shaft extending from said propeller into the body of theboat and havingr a universal joint adjacent the prow, a balland socketmember supporting said shaft adjacent the propeller and housing' saiduniversal joint, and means for causing` relative rocking motion to occurbetween the members of theball and socket joint, whereby said propellermay be angularly moved with respect tothe axis of the boat.

ln testimony that I claim the foregoing I have hereunto set my hand atMilwaukee. in the county of Milwaukee andl State of lVisconsin.

FREDERICK STANLEY PERKINS.

